1. Department of Internal Medicine, Miyazaki Prefectural Miyazaki Hospital, Miyazaki, Japan;
2. Department of Psychiatry, Miyazaki Prefectural Miyazaki Hospital, Miyazaki, Japan;
3. Department of Pathology, Miyazaki Prefectural Miyazaki Hospital, Miyazaki, Japan;
4. Wakakusa Hospital, Miyazaki, Japan